An unknown gas has a molar mass of 24.0 g/mol. What is the density of this gas at STP in g/L?

Q: A sample of xenon gas at a pressure of 748 mm Hg and a temperature of 63 °C, occupies a volume of…

A: Given data for a sample of Xenon gas, Pressure(P)=748mmHg Initial temperature(T1)=63℃=(63+273)K…

Q: Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters.…

A:

Q: a 5.16 L quality of a gas measured at STP has a mass of 37.3 g. what is the molar mass of the…

A: Given Volume of gas = 5.16 L Given Mass of gas = 37.3 g

Q: An unknown gas has a volume of 200.L at atm and -140 celcius. what is its volume at STP?

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Q: A sample of oxygen gas has a volume of 2.50 L at STP. How many grams of O, are present?

A: STP is commonly known as standard temperature pressure,  whose  values are at 298K temperature and…

Q: A sample of argon (Ar) gas occupies 65.0 mL at 22.0°C and 722 torr. What is the volume of this Ar…

A: STP ( Standard Temperature and Pressure ) conditions are Pressure = 1 atm = 760 torr Temperature =…

Q: Which of the following gasses occupies 22.4 L at STP? A) 1 mol of helium, He B) 1 mol of Xenon, Xe…

A: Since at STP, pressure = 1 atm and T = temperature = 273.15 K  Hence any gas with moles =1 will have…

Q: A fire extinguisher releases 1.96 g of an unknown gas that occupies 1.00 L at STP. What is the molar…

A: Given that:                                   Mass of the unknown gas = 1.96 g…

Q: How many molecules of CO are in 100. L of CO at STP?

A: Solution -

Q: A sample of gas occupies a volume of 625 mL at 85°C and 705 torr.  What will be the new temperature…

A: Given data,Initial volume(V1)=625mL=0.625LInitial temperature(T1)=85oC=85+273.15=358.15KInitial…

Q: A gas occupies a volume of 0.140 L at STP. How many grams of chlorine are present?

A: Answer:- This question is answered by using the simple concept of calculation of mass using the…

Q: What volume would result if a balloon were filled with 7.9 g of hydrogen gas at STP?

A:

Q: A 521 mL sample of gas contains 0.0354 moles and kept at 307 K. What is the pressure of the gas in…

A: The law of an ideal gas is mathematically expressed as: PV = nRT           .............. (1) P is…

Q: A sample of carbon dioxide is contained in a 125.0 mL flask at 0.900 atm and 17.8 °C. How many…

A: The ideal gas equation is actually the equation of state of a hypothetical ideal gas and it is as…

Q: How many grams of neon gas are in a 10.0 L container at STP?

A: At STP the volume of one mole gas is 22.4 Litre. Hence, by using this concept we can calculate…

Q: A 45 mL sample of a dry gas is collected at 380 torr and 25 °C. Calculate the volume of the gas…

A: Given  Volume of dry gas ( V ) =  45 mL                                        =  0.045 Liter…

Q: A gas occupies a volume of 17.4 L and exerts a pressure of 825MMHG35.0 C  is what volume will the…

A: Given, A gas occupies a volume of 17.4 L and exerts a pressure of825 mm Hg =1.08 atm at  35.0 °C…

Q: a certain gas was found to have a mass of 28.0g and occupy a volume of 22.4L at STP. What is the…

A: Given mass  of a gas is 28.0 g which occupy a volume of 22.4 L at STP . It means hear 1 mol of gas…

Q: A sample of helium gas occupies a volume of 9.69 L at 49.0°C and 0.420 atm. If it is desired to…

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Q: How many moles of gas are contained in a 20.0 L cylinder at a pressure of 50.0 atm and a temperature…

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Q: A gas at STP has a volume of 41.8 L.  How many moles of gas are present?

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Q: How many moles of nitrogen gas are contained in a 20.0 L container at STP using Avogadro's Law?

A: According to avagadro's law, 1 mole of each gas contain 22.4 L at STP. So to calculate number of…

Q: A sample of nitrogen gas at a pressure of 893 mmHg and a temperature of 32°C, occupies a volume of…

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Q: A sample of bromine gas occupies 2.65 L at 1.20 atm. container at the same temperature? I expect the…

A: Use the relation :P1V1 = P2 V2 ..…..(A)  Where, P1= initial pressure  of gas = 1.20 atm P2= final…

Q: Ammonia gas breaks down into hydrogen and nitrogen. If 8.5 L nitrogen is formed at STP, how many…

A: Decomposition of ammonia produce nitrogen and hydrogen gases. Given values -> Volume of N2 gas =…

Q: A 30.6 g sample of gas occupies 22.414 L at STP. What is the molecular weight of this gas.

A: The given data is as follows: The mass of a sample of gas = 30.6 g The volume of the gas = 22.414 L…

Q: How many moles of nitrogen gas will occupy a volume of 346 mL at 6680 torr and 27 C

A: Please find the given answer below:

Q: A sample of gas occupies a volume of 384ml  at 60 Torr and 27ﾟC. What volume will occupy at STP?

A: The combined gas law states that the ratio of the product of the original pressure and volume of a…

Q: 1.85 g of an unknown gas at STP fills a 500. mL flask. What is the molar mass of the gas?

A: Given: The mass of the unknown gas is 1.85 g. The volume of the flask is 500.0 mL.

Q: A gas mixture is made by combining 7.1 g each of Ar, Ne, and an unknown diatomic gas. At STP, the…

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Q: The density of an unknown gas compound is 6.52 g./L at (STP) What is the molar mass of the gas?

A: Density of gas=6.52 g/L At STP Temperature=273.15K Pressure=1atm Molar mass of gas=?

Q: 746 sample of NH3 gas is at STP. If the volume chnages to 497mL and the temp changes to 23ºC, what…

A: Introduction-  To determine the pressure of the gas at S.T.P (in atm )when 746 g sample of NH3 gas…

Q: A gas occupies a volume of 17.4 L and exerts a pressure of 825 mm Hg at 35.0 °C. What volume will…

A: The equation that relates the pressure, temperature, volume and number of moles of an ideal gas is…

Q: A nitrox ll gas mixture fo scuba diving contains oxygen gas at 53 atm and nitrigen gas at 94 atm.…

A: Given, pressure of nitrogen gas =94 atmpressure of oxygen =53 atmthey are allowed to mix and form…

Q: If a gas sample weighed 3.97 grams occupies 2.768 liters at STP what would be the molas mass of this…

A: Calculation for number of moles:At STP, 1 mole of any gas occupies 22.4 Litre of Volume

Q: A sample of argon gas at STP occupies 29.0 L. What mass of argon is present in the container? in…

A: Given, the volume of argon gas at STP = 29.0 L = 29 dm3 which  is a million moles of gas occupies 24…

Q: What is the molecular mass of a gas if 3.5 g of the gas occupies 2.1 L at STP?

A: A numerical problem based on gas law, which is to be accomplished.

Q: A 15.0g sample of gas occupies 23.2 L at STP. What is the molecular weight of this gas?

A:

Q: A sample of xenon gas occupies a volume of 7.22 L at 52.0°C and 0.710 atm. If it is desired to…

A: Given data: xenon gas occupies a volume of 7.22 L at 52.0°C and 0.710 atm New volume of the gas…

Q: A gas at 527 torr and 1.1 liters is allowed to expand to 4.5 liters. What is the final pressure of…

A: Given, initial pressure =527 torr initial volume of gas=1.1 L final  volume of gas=4.5 Lwe are asked…

Q: The density of of an unknown gas is 11.12 g/L at pressure and temperature of 632 torr and 45oC,…

A: This question can be solved by using ideal gas equation.

Q: At STP, what is the volume of in liters occupied by 55.0 g of Ar gas?

A:

Q: A sample of methane (CH4)has a volume of 26 mL at a pressure of 0.88 atmatm. What is the final…

A: Given :-  Initial pressure of gas (P1) = 0.88 atm  Initial volume (V1) = 26 mL  Final pressure of…

Q: a.) given 1 mol of gas in 1 L container at 0.00oC what is the pressure? b.) given 1 mol of gas at…

A: Answer a. This problem cab be solve by using the equation   PV=nRT Where P= Pressure,V=volume…

Q: What is the volume, in L, of 86.4 grams of N4O4 gas at STP?

A: Given: Mass of N4O4 = 86.4g  Molar mass of N4O4 = 4x14+4x16 g/mol…

Q: A 8.12 g gas at the pressure of 1090 mmHg and temperature of 20oC occupies a volume of 2.00 L.  How…

A: Consider the given information is as follows; Initial mass m1 = 8.12 g Final mass m2=?…

Q: A 500. mL sample of a gas is collected in a laboratory at a temperature of 293K and a pressure of…

A: An ideal gas is a gas that does not have any interaction between the particles and there is a…

Q: A sample of oxygen gas at a pressure of 790 mm Hg and a temperature of 50 °C, occupies a volume of…

A: Ideal gas equation will be used in this problem. It is written as PV = nRT where P = pressure, V =…

Q: A 200 mL sample of oxygen gas is collected at 26o C and a pressure of 690 mmHg. What volume will the…

A: For the phase change of the ideal gas the temperature, pressure, and volume of the initial state and…

Q: A sample of xenon gas occupies a volume of 7.29 L at 49.0°C and 0.800 atm. If it is desired to…

A: Given, a sample of xenon gas.initial volume V1 = 7.29 Linitial pressure P1 = 0.800 atm initial…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.